Imports github.com/aws/aws-sdk-go/aws/session github.com/gruntwork-io/terragrunt/options github.com/aws/aws-sdk-go/aws/endpoints github.com/aws/aws-sdk-go/service/sts github.com/gruntwork-io/terragrunt/errors github.com/aws/aws-sdk-go/aws/credentials/stscreds Standard library imports fmt time